1 // SPDX-License-Identifier: GPL-2.0+
5  * Handling for platform devices in IPMI (ACPI, OF, and things
57 /* For GPE-type interrupts. */
63 	ipmi_si_irq_handler(io->irq, io->irq_handler_data);  in ipmi_acpi_gpe()
69 	if (!io->irq)  in acpi_gpe_irq_cleanup()
73 	acpi_remove_gpe_handler(NULL, io->irq, &ipmi_acpi_gpe);  in acpi_gpe_irq_cleanup()
80 	if (!io->irq)  in acpi_gpe_irq_setup()
84 					  io->irq,  in acpi_gpe_irq_setup()
89 		dev_warn(io->dev,  in acpi_gpe_irq_setup()
91 			 io->irq);  in acpi_gpe_irq_setup()
92 		io->irq = 0;  in acpi_gpe_irq_setup()
93 		return -EINVAL;  in acpi_gpe_irq_setup()
96 	io->irq_cleanup = acpi_gpe_irq_cleanup;  in acpi_gpe_irq_setup()
98 	dev_info(io->dev, "Using ACPI GPE %d\n", io->irq);  in acpi_gpe_irq_setup()
106 		io->addr_space = IPMI_IO_ADDR_SPACE;  in ipmi_set_addr_data_and_space()
108 		io->addr_space = IPMI_MEM_ADDR_SPACE;  in ipmi_set_addr_data_and_space()
109 	io->addr_data = r->start;  in ipmi_set_addr_data_and_space()
120 		dev_err(&pdev->dev, "no I/O or memory address\n");  in ipmi_get_info_from_resources()
125 	io->regspacing = DEFAULT_REGSPACING;  in ipmi_get_info_from_resources()
128 		if (res_second->start > io->addr_data)  in ipmi_get_info_from_resources()
129 			io->regspacing = res_second->start - io->addr_data;  in ipmi_get_info_from_resources()
141 	rv = device_property_read_u8(&pdev->dev, "addr-source", &addr_source);  in platform_ipmi_probe()
145 		return -EINVAL;  in platform_ipmi_probe()
149 			return -ENODEV;  in platform_ipmi_probe()
152 			return -ENODEV;  in platform_ipmi_probe()
155 	rv = device_property_read_u8(&pdev->dev, "ipmi-type", &type);  in platform_ipmi_probe()
157 		return -ENODEV;  in platform_ipmi_probe()
161 	dev_info(&pdev->dev, "probing via %s\n",  in platform_ipmi_probe()
171 		return -ENODEV;  in platform_ipmi_probe()
173 		dev_err(&pdev->dev, "ipmi-type property is invalid\n");  in platform_ipmi_probe()
174 		return -EINVAL;  in platform_ipmi_probe()
178 	rv = device_property_read_u8(&pdev->dev, "reg-size", &regsize);  in platform_ipmi_probe()
183 	rv = device_property_read_u8(&pdev->dev, "reg-shift", &regshift);  in platform_ipmi_probe()
188 		return -EINVAL;  in platform_ipmi_probe()
190 	rv = device_property_read_u8(&pdev->dev, "slave-addr", &slave_addr);  in platform_ipmi_probe()
202 	io.dev = &pdev->dev;  in platform_ipmi_probe()
216 	{ .type = "ipmi", .compatible = "ipmi-kcs",
218 	{ .type = "ipmi", .compatible = "ipmi-smic",
220 	{ .type = "ipmi", .compatible = "ipmi-bt",
231 	struct device_node *np = pdev->dev.of_node;  in of_ipmi_probe()
236 		return -ENODEV;  in of_ipmi_probe()
238 	dev_info(&pdev->dev, "probing via device tree\n");  in of_ipmi_probe()
241 		return -EINVAL;  in of_ipmi_probe()
245 		dev_warn(&pdev->dev, "invalid address from OF\n");  in of_ipmi_probe()
249 	regsize = of_get_property(np, "reg-size", &proplen);  in of_ipmi_probe()
251 		dev_warn(&pdev->dev, "invalid regsize from OF\n");  in of_ipmi_probe()
252 		return -EINVAL;  in of_ipmi_probe()
255 	regspacing = of_get_property(np, "reg-spacing", &proplen);  in of_ipmi_probe()
257 		dev_warn(&pdev->dev, "invalid regspacing from OF\n");  in of_ipmi_probe()
258 		return -EINVAL;  in of_ipmi_probe()
261 	regshift = of_get_property(np, "reg-shift", &proplen);  in of_ipmi_probe()
263 		dev_warn(&pdev->dev, "invalid regshift from OF\n");  in of_ipmi_probe()
264 		return -EINVAL;  in of_ipmi_probe()
268 	io.si_type	= (enum si_type)device_get_match_data(&pdev->dev);  in of_ipmi_probe()
278 	io.irq		= irq_of_parse_and_map(pdev->dev.of_node, 0);  in of_ipmi_probe()
279 	io.dev		= &pdev->dev;  in of_ipmi_probe()
281 	dev_dbg(&pdev->dev, "addr 0x%lx regsize %d spacing %d irq %d\n",  in of_ipmi_probe()
290 	return -ENODEV;  in of_ipmi_probe()
299 		slave_addr = ipmi_dmi_get_slave_addr(io->si_type,  in find_slave_address()
300 						     io->addr_space,  in find_slave_address()
301 						     io->addr_data);  in find_slave_address()
309 	struct device *dev = &pdev->dev;  in acpi_ipmi_probe()
317 		return -ENODEV;  in acpi_ipmi_probe()
321 		return -ENODEV;  in acpi_ipmi_probe()
329 	/* _IFT tells us the interface type: KCS, BT, etc */  in acpi_ipmi_probe()
332 		dev_err(dev, "Could not find ACPI IPMI interface type\n");  in acpi_ipmi_probe()
333 		return -EINVAL;  in acpi_ipmi_probe()
347 		return -ENODEV;  in acpi_ipmi_probe()
349 		dev_info(dev, "unknown IPMI type %lld\n", tmp);  in acpi_ipmi_probe()
350 		return -EINVAL;  in acpi_ipmi_probe()
359 		return -EINVAL;  in acpi_ipmi_probe()
393 	return -ENODEV;  in acpi_ipmi_probe()
399 	if (pdev->dev.of_node && of_ipmi_probe(pdev) == 0)  in ipmi_probe()
410 	ipmi_si_remove_by_dev(&pdev->dev);  in ipmi_remove()
418 	return strcmp(pdev->name, name) == 0;  in pdev_match_name()
435 	{ "dmi-ipmi-si", 0 },
436 	{ "hardcode-ipmi-si", 0 },
437 	{ "hotmod-ipmi-si", 0 },